EN10219-1 EN10219-2 Cold Formed Welded Structural Hollow Sections of Non-Alloy and Fine Grain Steels

Part 1: Technical delivery condition

Part 2: Tolerances, Dimensions and Sectional Properties

Structural hollow section manufacturing process:

Structural hollow sections are manufactured by electric welding or submerged arc welding without subsequent heat treatment. Hollow sections manufactured by a continuous process shall not incude the welds used to join the lengths of strip prior to forming the hollow section, except that for helically welded submerged arc-welded (SAW) hollow sections, such welds shall be permitted when tested in accordance with 9.4.3.0 EN10219-1, EN10291-2.

Delivery conditions:

The hollow sections are delivered cold formed without subsequent heat treatment except that weld seam maybe in the as welded or heat treated condition

NOTE: For SAW hollow sections above 508 mm outside diameter it may be necessary to perform a warm shaping operation, which does not affect the mechanical properties, in order to meet the out-of-roundness tolerance requirements.

Suitability for hot dip galvanization:

The products are suitbale for hot dip galvanization.

TABLE 1 Tolerances

TABLE 2 Tolerances

①Where the diameter to thickness ratio exceeds 100 the tolerance on out-of-roundness shall be agreed.

②The tolerance on convexity and concavity is independent of the tolerance on outside dimensions.

TABLE 3 External Corner Profile

The sides need not be tangential to the corner arcs.

TABLE 4 Tolerances on length①

①The purchaser shall indicate in the enquiry and order the type of length required and the length range or length required.

TABLE 5 Tolerances on height of internal and external weld bead for submerged arc welded hollow sections

Products forms:

CFCHS = cold formed circular hollow section

CFRHS = cold formed square or rectangular hollow section

Charecteristics:

- Tolerances on dimensions and shapes

- Elongation

- Tensile strength

- Yield strength

- Impact strength

- weldability (chemical composition)

Normative references:

EN287-1, Qualification test of welders - Fusion welding - Part 1: Steels

EN10020-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature

EN10020:2000, Definition and classification of grades of steel

EN10021:1983, General technical delivery requirements for steel and iron products

EN10027-1, Designation systems for steels - Part 1: Steel names

EN10027-2, Designation systems for steels - Part 2: Numericl systems

EN10045-1, Metallic materials - Charpy impact test - Part 1: Test method

EN10052:1993, Vocabulary of heat treatment terms for ferrous products

EN10168, Steel products - Inspection documents - List of information and description

EN10204, Metallic products - Types of inspection and description

EN10219-2:2006, Cold formed welded structural hollow sections of non-alloy and fine grains steels - Part 2: Tolerances, dimensions and sectional properties

EN10246-3, Non-destructive testing of steel tubes - Part 3: Automatic eddy current testing of seamless and welded ( except submerged arc welded ) steel tubes for the detection of imperfections.

EN10246-5, Non-destructive testing of steel tubes - Part 5: Automatic full peripheral magnetic transducer/flux leakage testing of seamless and welded ( except submerged arc welded) ferromagnetic steel tubes for the detection of longitudinal imperfections

EN10246-8, Non-destructive testing of steel tubes - Part 8: Automatic ultrasonic testing of the weld seam of electric welded steel tubes for the detection of longitudinal imperfections

EN10246-9, Non-destructive testing of steel tubes - Part 9: Automatic ultrasonic testing of the weld seam of submerged arc-welded steel tubes for the detection of longitudinal and/or transverse imperfections

EN10246-10, Non-destructive testing of steel tubes - Part 10: Radiographic testing of the weld seam of automatic fusion arc welded steel tubes for the detection of imperfections

EN1056, Non-destructive testing of steel tubes - Qualification and competence of level 1 and 2 non-destructive testing personnel

CR 10261, ECISS information Circular 11 - Iron and steel - Review of available methods of chemical analysis

EN10266:2003, Steel tubes, fittings and steel structural hollow sections - Symbols and definitions of terms for use in product standards

EN ISO 377, Steel and steel products - Location and preparation of seamless and test pieces for mechanical testing (ISO 377: 1997)

EN ISO 643, Steels - Micrographic determination of the apparent grain size ( ISO 643:2003)

EN ISO 2566-1, Steels - Conversion of elongation valves - Part 1: Carbon and low alloy steels ( ISO 2566-1:1984 )

EN ISO 9001:2000, Quality management systems - Requirements ( ISO9001:2000)

EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical composition( ISO 14284:1996)

EN ISO 15607, Specification and qualification of welding procedures for metallic materials - General rules ( ISO15607:2003)

EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1:2004)

EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1: 2004)